The Mad Monster is an American horror film released in 1942 by P.R.C. (Producers Releasing Corporation), a Poverty Row studio. The film, a B-movie shot in black and white, features a mad scientist and a werewolf as the main characters. Directed by Sam Newfield and written by Fred Myton, the film—Poverty Row's only Werewolf movie—stars George Zucco, Glenn Strange and Anne Nagel. Its running time is 77 minutes. It was featured in an episode of the cult classic TV show "Mystery Science Theater 3000" in 1989.